Process for the production of biotin precursors
    1.
    发明授权
    Process for the production of biotin precursors 失效
    生物素前体生产工艺

    公开(公告)号:US4851540A

    公开(公告)日:1989-07-25

    申请号:US127052

    申请日:1987-12-01

    摘要: Process for the production of imidazole derivatives of the formula: ##STR1## wherein R.sub.1 is an (R)- or (S)-1-phenylalkyl group, an (R)- or (S)-1-alkoxycarbonyl-1-phenylmethyl group or an (R)- or (S)-1-aryloxycarbonyl-1-phenylmethyl group, R.sub.2 is hydrogen, a substituted or unsubstituted alkanoyl group, an unsubstituted or a substituted benzoyl group, a substituted or an unsubstituted benzyl group, an alkoxycarbonyl group, and aryloxycarbonyl group, an alkoxyalkyl group, a pyranyl group, a substituted or unsubstituted benzenesulfonyl group, an alkylsulfonyl group, a diarylphosphinyl group, a dialkoxyphosphinyl group or a trialkylsilyl group, and A is a sulfur or oxygen atom. A tetronic acid of the formula: ##STR2## wherein A has the above-mentioned meaning, is reacted with a diazonium salt, converting the resultant arylazotetronic acid or the tautomeric arylhydrazone in a further step with a chiral amine into an arylazoamino compound, reducing the arylazoamino compound, converting the resultant diamine, with phosgene or a phosgene-equivalent reagent, into the corresponding imidazole and optionally introducing a protective group by reaction with a substituted or unsubstituted aliphatic or aromatic acid chloride, an aliphatic or aromatic carboxylic acid anhydride, a haloformic acid alkyl ester, a 1-alkoxyalkyl halide, an enol ether, an aromatic or aliphatic sulfonic acid halide, a diarylphosphinic acid halide, a phosphoric acid dialkyl ester halide, a trialkyl silyl halide or a trialkyl silyl acetamide. These imidazole derivatives are suitable as intermediate products for the production of (+) biotin.

    摘要翻译: 制备下式的咪唑衍生物的方法:其中R1是(R) - 或(S)-1-苯基烷基,(R) - 或(S)-1-烷氧基羰基-1-苯基甲基 基团或(R) - 或(S)-1-芳氧基羰基-1-苯基甲基,R2是氢,取代或未取代的烷酰基,未取代或取代的苯甲酰基,取代或未取代的苄基,烷氧基羰基 基团和芳氧基羰基,烷氧基烷基,吡喃基,取代或未取代的苯磺酰基,烷基磺酰基,二芳基氧膦基,二烷氧基氧膦基或三烷基甲硅烷基,A是硫或氧原子。 其中A具有上述含义的特丁酸与重氮盐反应,将得到的芳基氮杂过硫酸或互变异构芳基腙用手性胺转化成芳基偶氮氨基化合物,将还原 芳基偶氮基氨基化合物,将所得二胺与光气或光气当量的试剂转化成相应的咪唑,并任选地通过与取代或未取代的脂族或芳族酰氯,脂族或芳族羧酸酐反应引入保护基, 卤代甲酸烷基酯,1-烷氧基烷基卤化物,烯醇醚,芳族或脂族磺酸卤化物,二芳基次膦酸卤化物,磷酸二烷基酯卤化物,三烷基甲硅烷基卤化物或三烷基甲硅烷基乙酰胺。 这些咪唑衍生物适用于生产(+)生物素的中间产物。

    Optically-active di-[3-chloro-2-oxy-propyltrimethylammonium]-tartrate
    2.
    发明授权
    Optically-active di-[3-chloro-2-oxy-propyltrimethylammonium]-tartrate 失效
    光学活性二 - [3-氯-2-氧 - 丙基三甲基铵] - 酒石酸盐

    公开(公告)号:US4692543A

    公开(公告)日:1987-09-08

    申请号:US832760

    申请日:1986-02-25

    CPC分类号: C07C59/255

    摘要: Process for the production of optically-active di-[3-chloro-2-oxy-propyltrimethylammonium]-tartrate. Racemic 3-chloro-2-oxy-propyltrimethylammonium-chloride is converted by racemate resolution with CaCl.sub.2, for example, into the optically-active di-[3-chloro-2-oxy-propyltrimethylammonium]-tartrate. Such optically-active tartrate compound is dissociated into calcium tartrate and optically-active 3-chloro-2-oxy-propyltrimethylammonium-chloride, and the latter is converted with inorganic cyanides. From the product, the production of optically-active carnitine nitrile chloride can be achieved.

    摘要翻译: 制备光学活性二 - [3-氯-2-羟基 - 丙基三甲基铵] - 酒石酸盐的方法。 外消旋3-氯-2-氧 - 丙基三甲基氯化铵通过外消旋体拆分与CaCl 2转化成例如光学活性的二 - [3-氯-2-氧 - 丙基三甲基铵] - 酒石酸盐。 这样的光学活性酒石酸盐化合物被解离为酒石酸钙和光学活性的3-氯-2-氧 - 丙基三甲基氯化铵,后者用无机氰化物转化。 从产品出发,可以实现光学活性肉碱氯化腈的生产。

    Process for the production of tetronic acid
    3.
    发明授权
    Process for the production of tetronic acid 失效
    生产四氢酸的方法

    公开(公告)号:US4414400A

    公开(公告)日:1983-11-08

    申请号:US388432

    申请日:1982-06-14

    CPC分类号: C07D307/60

    摘要: Process for the production of tetronic acid from 4-haloacetoacetic ester. The 4-haloacetoacetic ester is transformed into the corresponding 4-tertiary-butoxyacetoacetic ester and the latter is converted by cyclizing ether cleavage into tetronic acid. Preferably the cyclizing ether cleavage is carried out thermolytically at a temperature above 100.degree. C. or is carried out by treatment with an acid at a temperature of 0.degree. to 30.degree. C. Tertiary-butoxyacetoacetic acid ethyl ester is a new compound.

    摘要翻译: 从4-卤代乙酰乙酸生产四氢萘的方法。 将4-卤代乙酰乙酸酯转化为相应的4-叔丁氧基乙酰乙酸酯,后者通过将醚裂解环化成四氢酸而转化。 优选地,环化醚裂解在高于100℃的温度下进行热分解,或通过在0℃至30℃的温度下用酸处理进行。叔丁氧基乙酰乙酸乙酯是新的化合物。

    Optically-active di-[3-chloro-2-oxy-propyltrimethylammonium]-tartrate
    4.
    发明授权
    Optically-active di-[3-chloro-2-oxy-propyltrimethylammonium]-tartrate 失效
    光学活性二 - [3-氯-2-氧 - 丙基三甲基铵] - 酒石酸盐

    公开(公告)号:US4732999A

    公开(公告)日:1988-03-22

    申请号:US877784

    申请日:1986-06-24

    CPC分类号: C07C59/255

    摘要: Process for the production of optically-active di-[3-chloro-2-oxy-propyltrimethylammonium]-tartrate. Racemic 3-chloro-2-oxy-propyltrimethylammonium-chloride is converted by racemate resolution with optically-active tartaric acid into the optically-active di-[3-chloro-2-oxy-propyltrimethylammonium]-tartrate. Such optically-active tartrate compound is dissociated in tartaric acid to optically-active 3-chloro-2-oxy-propyltrimethylammonium-chloride and the latter is converted with inorganic cyanides. From the product, the production of optically-active carnitine nitrile chloride can be achieved.

    摘要翻译: 制备光学活性二 - [3-氯-2-羟基 - 丙基三甲基铵] - 酒石酸盐的方法。 外消旋3-氯-2-氧 - 丙基三甲基氯化铵通过外消旋物拆分与光学活性酒石酸转化成光学活性的二 - [3-氯-2-氧基 - 丙基三甲基铵] - 酒石酸盐。 这种光学活性酒石酸盐化合物在酒石酸中分解成光学活性的3-氯-2-氧 - 丙基三甲基氯化铵,后者用无机氰化物转化。 从产品出发,可以实现光学活性肉碱氯化腈的生产。

    Preparation of optically-active
di-(3-chloro-2-oxy-propyltrimethylammonium)-tartrate
    5.
    发明授权
    Preparation of optically-active di-(3-chloro-2-oxy-propyltrimethylammonium)-tartrate 失效
    光学活性二(3-氯-2-氧基 - 丙基三甲基铵) - 酒石酸酯的制备

    公开(公告)号:US4732709A

    公开(公告)日:1988-03-22

    申请号:US877786

    申请日:1986-06-24

    CPC分类号: C07C59/255

    摘要: Process for the production of optically-active di-[3-chloro-2-oxy-propyltrimethylammonium]-tartrate. Racemic 3-chloro-2-oxy-propyltrimethylammonium-chloride is converted by racemate resolution with optically-active tartaric acid into the optically-active di-[3-chloro-2-oxy-propyltrimethylammonium]-tartrate. Such optically-active tartrate compound is dissociated in tartaric acid and optically-active 3-chloro-2-oxy-propyltrimethylammonium-chloride and the latter is converted with inorganic cyanides. From the product, the production of optically-active carnitine nitrile chloride can be achieved.

    摘要翻译: 制备光学活性二 - [3-氯-2-羟基 - 丙基三甲基铵] - 酒石酸盐的方法。 外消旋3-氯-2-氧 - 丙基三甲基氯化铵通过外消旋物拆分与光学活性酒石酸转化成光学活性的二 - [3-氯-2-氧基 - 丙基三甲基铵] - 酒石酸盐。 这种光学活性酒石酸盐化合物在酒石酸和光学活性3-氯-2-氧 - 丙基三甲基氯化铵中解离,后者用无机氰化物转化。 从产品出发,可以实现光学活性肉碱氯化腈的生产。

    Optically-active di-[3-chloro-2-oxy-propyltrimethylammonium]-tartrate
    6.
    发明授权
    Optically-active di-[3-chloro-2-oxy-propyltrimethylammonium]-tartrate 失效
    光学活性二 - [3-氯-2-氧 - 丙基三甲基铵] - 酒石酸盐

    公开(公告)号:US4670192A

    公开(公告)日:1987-06-02

    申请号:US877785

    申请日:1986-06-24

    CPC分类号: C07C59/255

    摘要: Process for the production of optically-active di-[3-chloro-2-hydroxy-propyltrimethylammonium]-tartrate. Racemic 3-chloro-2-hydroxy-propyltrimethylammonium-chloride is converted by racemate resolution with optically-active tartaric acid into the optically-active di-[3-chloro-2-hydroxy-propyltrimethylammonium]-tartrate. Such optically-active tartrate compound is dissociated in tartaric acid and optically-active 3-chloro-2-hydroxy-propyltrimethylammonium-chloride and the latter is converted with inorganic cyanides. From the product, the production of optically-active carnitine nitrile chloride can be achieved.

    摘要翻译: 制备光学活性二 - [3-氯-2-羟基 - 丙基三甲基铵] - 酒石酸盐的方法。 外消旋的3-氯-2-羟基 - 丙基三甲基氯化铵通过外消旋物拆分与光学活性酒石酸转化成光学活性的二 - [3-氯-2-羟基 - 丙基三甲基铵] - 酒石酸盐。 这种光学活性酒石酸盐化合物在酒石酸和光学活性3-氯-2-羟基 - 丙基三甲基氯化铵中解离,后者用无机氰化物转化。 从产品出发,可以实现光学活性肉碱氯化腈的生产。

    Production of 2-(2-aminothiazole-4-yl)-2-(syn)-methoxyimino acetic esters
    7.
    发明授权
    Production of 2-(2-aminothiazole-4-yl)-2-(syn)-methoxyimino acetic esters 失效
    2-(2-氨基噻唑-4-基)-2-(顺式) - 甲氧基亚氨基乙酸酯的制备

    公开(公告)号:US4503234A

    公开(公告)日:1985-03-05

    申请号:US286636

    申请日:1981-07-24

    CPC分类号: C07D277/587

    摘要: Process for the production of 2-(2-aminothiazole-4-yl)-2-(syn)-methoxyimino acetic ester. First 4-chloroacetoacetic ester is oximized and then the resultant chlorohydroxyimino ester, in solution form, reacted with thiourea to produce 2-(2-aminothiazole-4-yl)-2-(syn)-hydroxyimino acetic ester. The latter is methylated with dimethyl sulfate using phase transfer catalysis.

    摘要翻译: 2-(2-氨基噻唑-4-基)-2-(顺式) - 甲氧基亚氨基乙酸酯的制备方法。 首先将4-氯乙酰乙酸酯肟化,然后得到的溶液形式的氯代羟基亚氨基酯与硫脲反应,得到2-(2-氨基噻唑-4-基)-2-(顺式) - 羟基亚氨基乙酸酯。 后者使用相转移催化用硫酸二甲酯进行甲基化。

    Process for the production of carnitine
    8.
    发明授权
    Process for the production of carnitine 失效
    肉碱生产工艺

    公开(公告)号:US4021480A

    公开(公告)日:1977-05-03

    申请号:US616848

    申请日:1975-09-25

    申请人: Leander Tenud

    发明人: Leander Tenud

    摘要: The process for the production of carnitine hydrochloride which involves reacting an ester of .gamma.-halo-acetoacetic acid having the formula: ##STR1## R.sub.1 is a hydrogen, R.sub.2 is a lower alkyl group having 1 to 10 carbon atoms and X is halogen selected from the group consisting of chlorine or bromine, with an alkali alcoholate, which is present in a stoichiometrically excessive amount, at a temperature between 0.degree. and -40.degree. C. The reaction product is reacted with trimethylamine at a temperature between 10.degree. and 50.degree. C., a (3-carbalkoxy-2-oxopropyl)-trimethyl ammonium halide resulting. The (3-carbalkoxy-2-oxopropyl)-trimethyl ammonium halide is hydrogenated, a carnitine ester resulting. Then the carnitine ester is converted by means of aqueous hydrochloride acid into carnitine hydrochloride.

    摘要翻译: 生产盐酸左旋肉碱的方法包括使具有下式的γ-卤代乙酰乙酸酯反应:氢,R2是具有1-10个碳原子的低级烷基,X是选自 由氯或溴组成的组与碱性醇化物以0至-40℃的温度以化学计量过量存在。反应产物在10至50℃的温度下与三甲胺反应 得到(3-碳烷氧基-2-氧代丙基) - 三甲基卤化铵。 (3-烷氧基-2-氧代丙基) - 三甲基卤化铵被氢化,得到肉碱酯。 然后将肉碱酯通过盐酸水溶液转化成肉碱盐酸盐。